Eyeleting-machine.



F. L. HARMON.

EYELETING MACHINE.

APPLICATION man APR.20. |914.

Patented Jan. 25, 1916.

2 SHEETS-SHEET l.

FRANK L. HARMON, OF BEVERLY, MASSACHUSETTS.

EYELETING-MACHINE.

LGQLSQQ.

Specification of Letters Patent.

Patented J an. 25, 1916.

Application iled. April 2G, 19111. Serial No. 833,014.

To all whom it may concern.'

Be it known that l, FRANK L. HARMON, a citizen of the United States, and resident of Beverly, county of Essex, Commonwealth of Massachusetts, have invented an mprovement in Eyeleting-Machines, which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts in each of the several views.

This invention relates to eyeleting machines of vthat type wherein the holes are punched in the stock and the eyelets inserted and clenched individually with an automatic feed of the material for spacing the eyelets between successive eyeleting operations. l The general object of the invention is to provide an improved machine of this type of exceptionally simple construction, capable of rapid accurate operation, wherein all theworking parts operate from one side of the material support, such material supe port including the punch block and clenching surface being preferably solid and imperforate. i

More especially the invention has to do with an improved eyeleting machine of the general type stated in which an eyelet set with a spindle therein is normally held directly above a clenching surface for operative movement toward and from the same, and a punch-carrier with a punch held therein is located in operative relation to a punch block, the punch-carrier being so mounted and operated as to impart to the punch acycle of movement wherein it first operates against the punch lblock to' punch the material, then moves laterally a predetermined amount to a position under the spindle and set to feed the material and position the hole punched in line with the spindle and set, and is then moved out from under the spindle and set and returned to initial position. ln connection with the operative movement of the spindle and set toward and from the clenching surface l: preferably provide means whereby the eyelet may be taken up from a race way by the spindle as it ldescends and inserted in the eyelet hole, the set in its further movement clenching the eyelet against the relatively stationary clenching surface.

The above and other objects and features of the invention will be better understood ofv from the following detailed description taken in connection with the accompanying drawings and will be thereafter pointed out in the appended claims.

Referring to the drawings: Figure 1 is a plan. view of a machine constructed in accordance with my invention; Fig. 2 is a side elevation thereof with a small part broken away; and l? ig. 3 is an enlarged sectional detail of the immediate working parts.

At the front of a suitable base is mounted a stand 11 constituting a material support and shown as equipped with a hardened plate or block 12 at its top, the face of which constitutes a punch block and also has a portion formed to serve as a clenching surface. The material a is slidable over this face, being gaged transversely by an upstanding backing piece 13 and is pressed down on to the support face by a spring presser foot 14.

A hollow punch 15 is mounted to move toward and from the punch block face of the plate 12 and also laterally thereof, and is for this purpose threaded in the outer end of a lever 16 fulcrumed on horizontal journals 17 which are formed in a journal block 1S which in turn is mounted to swing on a vertical axis, having for this purpose an axis bolt 19 journaled in the base. For imparting the requisite movements to the lever 16 and hence to the punch 15, I form the inner end of the lever of rounded ball shape as seen at 20 adapted to be acted on by a peripheral cam 21 fixed on a prime drive shaft 22 horizontally journaled in the base. Suitable means, herein shown as a spring 23 fixed to the post 18 and pressing upward on the outer portion of the lever, may be employed for returning the punch upward and holding the inner lever end against said cam. The rounded lever end 9.0 is also yacted on by a lateral'cam face E24 being drawn toward such face by a coil spring 25 pulling on the outer end of the lever and anchored to an adjusting screw 26 carried in a post 27 upstanding from the base. The extent to which the lever 16 may swing under the action of the spring Q5 and as permitted by the cam 2l is limited by a stop pin 28 adjustable in a post 29 up standing from the base, the adjustment of this stop serving to determine the initial or punching position of the punch as later described. ,A second lever 30 is journaled ai; 31 for movement on a horizontal axis. This lever had adjustably fixed at its outer end a set 32, the set being shown as adj ustably threaded in the lever end. 'lhis set is hollow and has projecting therefrom a spindle 33 shown as equipped with an enlarged -liead 3ft slidablein the hollow of the set and pressed outward by a coil spring 35 whichieacts against a cap nut 36; this nut also serving as a lock nut to hold the set secure in the lever end. shown as equipped with a laterally extending roller 37 which operates in a cam path 38 of a cam member 39 fixed on the shaft 22.

VThe spring presser foctrlll extends laterally beneath the path of the punch in its lateral movement as at 40 and this lateral extension is forked or slotted as seen at 41 l to permit the operation of the punch there-V The material support platey 12 through. which preferably has its surface plane and smooth is formed underneath the set with a-cleiicliing surface indicated at l2 consisting of a concaveannular groove of a size and-contour adapted to engage the ends of the eyeletsv and spread them outward to clench against the inner side of the material.

It vmay now be understood that as the shaft 22 is rotated in thedirection of the 'arrow seen in Fig. 2, the punch 15 will be moved downward to punch the hole in the material by the raised portion 21b of cam 21 which follows a concentric portion 21a. For this operation the punch may be nicely adjusted so as to just come against the punch block surface by its threaded engagement with the end yof lever 16 and it may be secured in such adjusted position by a transverse clamp screw 48 which may press against the punch with an interposed wear pad, of rawhide or the like. After the punching operation the punch is slightly relieved from the punch block by a very slightly rethat the outer end 16EL of lever 16 is cut away.'

at its top soas to afford clearance permitting it to swing the punch to proper position underneath the set., The punched hole beingV thus positioned inline with the spindle and set Ythe punch is raised by the action of spring23 on the punchlever'l, a descent 21d on cam 21 permitting this withdrawal, this-cam portion merging into the concentric reduced portion 21a which leaves the punch withdrawn while itis returned laterally to initial position. This lateral returning of the punch is eected by spring 25, a descendrlhe 4inner end of lever 30 is The extent to which the punch Y punch' block is an extended plane surface, Y

different portions thereof may serve as a backing Yfor the action of the punch. The purpose of thus varying the punching position is to feed the material predetermined amounts variable vas required to space Vthe eyelets the desired distance apart. This means of varying the eyelet spacing-by varying the punching position of the punch is desirable in the present construction since the other limit of lateral punch movement is a xed one as required to position the punched hole in line with the spindle and set. f

In the broader aspects of the invention,l the eyelets b may bev supplied in any desired way, but I preferably provide an eyelet race way indicated at lll adapted to feed a line of eyelets to position so that the foremost one will be pickedoff and threaded on the spindle as it descends to position 4it in the punched hole. I am aware'that'details of construction may be varied considerably without departing from the spirit or essential attributes of the-invention andV I therefore desire the present embodiment to be considered as illustrative and not restrictive referring rather to the appended claims to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent'is:

1. An Veyeleting machine, comprising a material support having a substantially continuous, smooth, and Vplane surface, a portion of which constitutes a punch block and with a stationary clenching surface formed thereon, aset equipped with a spindle, movably mounted in cooperative relation with said clenching surface, a punch movably mounted to punch holes in the material against said punch block and also forrlateral movement to bring it with the punched hole at one limit thereof in line with said set and at the other limit thereof laterally away therefrom the distance the eyelets Vare to be spaced, and mechanism for imparting said movements of the punch and set. Y

2. An eyeleting machine', comprisinga ma-Y i ir terial support having a substantially continnous, smooth, and plane surface, a portion of which constitutes a-punch block and with av Y iso of, means for imparting said movements, a set with a spindle projecting therefrom mounted to clench the eyelets in the punched holes against said clenching surface, and operating means for said set, the mounting and operating means of said punch being such as to move it alternately under said set and laterally away therefrom.

3. An eyeleting machine, comprising a material support having a substantially continuous, smooth, and plane surface, a portion of which constitutes a punch block and with a stationary clenching surface formed thereon, a punch mounted and equipped With operating means for punching` holes in the material against said punch block and also for lateral movement While engaged in the material to position the punched hole over said clenching surface, and a set With a spindle projecting therefronr separately mounted and equipped with operating means for moving it toward and from said clenching surface to clench the eyelets in the punched holes against said clenching surface.

4. An eyeleting machine, comprising a material support having a substantially continuous, smooth, and plane surface, a portion of which constitutes a punch block and with a stationary clenching surface formel thereon, a set movably mounted to cooperate with said clenching surface, a punch movably mounted to operate against said punch block for punching holes in the material and also for lateral movement to feed the ma erial, said la eral punch movement being such as to bring it and the punched hole at one limit in line With the set and at its other limit a lateral distance therefrom corresponding to the spacing of the eyelets, mechanism for imparting said movements of the pu ch and set, and means for varying one of the limits of punching movement to vary the eyelet spacing.

5. An eyeleting machine, comprising a material support equipped with apunch block and a clenching surface, a punch and a set having lever mountings side by side for cooperation with said punch block and clenching surface respectively, the lever carrying said punch being svviveled to move the punch laterally, means for operating the set,

mechanism for operating the punch to punch the holes and also to move the punch laterally to bring it at one limit of movement While engaged in the Work in line With the set, separate yielding means for returning the punch to its other limit of movement, and an adjustable stop for varying the last named limitof movement to determine the punching position and vary the spacing of the eyelets.v

6. An eyeleting machine, comprising a material support formed as an imperforate plate or block With a portion thereof constituting a punch block and with a stationary clenching surface formed thereon, a punch and a set movably mounted side by side on the same side of said material support for cooperation with said punch block and clenching surface respectively, means for imparting operative movements to the punch and set, and means for moving the punch laterally to position it at one limit of movement in line with the set and at its other limit of movement a distance therefrom corresponding to the spacing of the eyelets.

7. An eyeleting machine, comprising a material support formed as an imperforate plate or block with a portion thereof constituting a punch block and with a stationary clenching surface formed thereon, a punch and a set movably mounted side by side on the same side of said material support for coperation With said punch block and clenching surface respectively, means for imparting operative movements to the punch and set, means for moving the punch laterally to position it at one limit of movement in line With the set and at its other limit of movement a distance therefrom corresponding to the spacing of the eyelets, the latter limit of movement being the punching position, and means for varying said punching position.

In testimony whereof, l have signed my name to this specification, in the presence of two subscribing Witnesses.

FRANK L. HARMON.

Witnesses CLYDE L. Rooms, LoUIsn A. JORDAN.

Copies of this patent may be obtained Vfoi` ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

